<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <script src="https://cdn.staticfile.org/react/16.4.0/umd/react.development.js"></script>
    <script src="https://cdn.staticfile.org/react-dom/16.4.0/umd/react-dom.development.js"></script>
    <!-- 生产环境中不建议使用 -->
    <script src="https://cdn.staticfile.org/babel-standalone/6.26.0/babel.min.js"></script>
    <title>React 表单</title>
</head>

<body>
    <div id="app">



    </div>
</body>
<script type="text/babel">
        class Guo extends React.Component{

            cg(e){
                console.log(e);
            }
            render(){
                return (<form>
                            <input type="checkbox" defaultChecked="true"/>
                        </form>)
            }
        }
        ReactDOM.render(<Guo/>,app)
    </script>

</html>